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H. HIRAKAWA.

STRING CUTTING RING.

APPLICATION EILED MAR.19.I9I8.

Patented J uly 8, 1919.

!NVENTOR J-[ame -[eimkauu BY Q ATTORNEY rm: COLUMBIA Moan? cm, WASHINGTON. n. l:-

UNITED STATES I-IARUE HIRAKAWA, OF SAN DIEGG, CALIFORNIA.

STRING-CUTTING RING.

j; 9 325 Specification of Letters Patent.

Application filed Marchii), 1918.

'1 '0 all Iii/mm it may (0121mm.

Be it known that I, HARUE HIRAKAWA, a subject of the Emperor of Japan, residing at San Diego, in the county of San Diego and State of California, have invented certain new and useful Improvements in StringCutting Rings, of which the following is a specification.

My invention relates to a ring to be worn on the finger by clerks in stores and the like for cutting string, when doing up packages and the objects of my invention are:

First, to provide a ring resembling the conventional ornamental finger ring to be worn on the finger, which supports a knife for severing the string at any place desired. Second, to provide a string cutting ring of this class with oppositely disposed severing edges so that the string may be severed by pulling it in either direction as desired. Third, to provide a ring of this class in which the string cutting knife is so positioned that it is not liable to cut the wearer or others coming in contact with the ring, and fourth, to provide a string cutting ring of this class which is very simple and economical of construction, durable, easy to operate, and which will not readily deteriorate or get out of order.

With these and other objects in view as will appear hereinafter, my invention consists of certain novel features of construction, combination and arran 'ement of parts and portions as will be hereinafter described in detail and particularly set forth in the appended claims, reference being had to the accompanying drawings and to the characters of reference thereon, which form a part of this specification, in which:

Figure 1, is a side elevational view of the ring: Fig. 2, is an edge view thereof: Fig. 3, is a sectional view through 3-3 of Fig. 2, looking in one direction: Fig. t, is a similar view, looking in the 'opposite direction: Fig. 5, is a top view of said ring and Fig. 6, is a sectional view through 6-6 of Fig. 1.

Similar characters of reference refer to similar parts and portions throughout the several views of the drawings.

The ring member 1, knife member 2, and torsion spring 3, constitute the principal parts of my string cutting ring.

The ring member 1, is shaped similar to the conventional ornamental ring, and may be made in different sizes to fit the finger Patented Jniy 8, 1912).

Serial No. 223,430.

of the operator. It is provided on its top side with an enlarged portion 1, in the middle of which is a downwardly enlarging groove 1, leaving upwardly extending projecting portions 1 and 1. In the portion 1 is pivotally mounted the knife member by means of the pin 2, this knife member 2, is bifurcated and between the two members on the pin 2 is a torsion spring 3, the one end of which engages a portion of the portion 2 and the other end engages the lower surface of the knife 2, thus tending to hold the free end of the knife 2 upwardly against a projection i in the portion 1, as shown best in Fig. 6. This knife blade 2, may be depressed to permit the string to enter the slot 1 under the knife and then either end of the string may be brought over either edge of the knife and the string severed by the sharpened edge 2 It will be here noted that there is a cut-away portion 1 forming a notch in the side 1 of about the same width as the knife blades so that when the knife is in its normal position the edges of the knife engage the sides of the notch 1 making it rigid against pressure from either side. it will be here noted that the sides of the ring at 1 is klgurled to permit the string from slipping 0 Though I have shown and described a particular construction, combination and arrangement of parts and portions, do not wish to be limited to this particular construction combination and arrangen'ient but desire to include in the purview of my invention the construction, combination, and arrangen ent substantially as set forth in the appended claims.

It is obvious that with this construction of ring there is provided a means for readily severing a string, the string being pressed down against the knife 2, depressing the same so that the string passes the free edge of the knife into the slot 1 after which either end of the string may be brought up against the sharp edge of the knife and severed.

Having thus described my invention, what i claim as new, and desire to secure by Letters Patent. is:

1. In a device of the class described, a ban d ring provided with an, enlarged portion with an inwardly enlarging circumferential slot therein, a knife with oppositely disposed cutting edges pivotally mounted in one side portion, and extending over said slot and its opposite edge engaging the opposite side which serves as a sto and a torsion spring engaging said knife and the side in which said knife is pivoted tending to hold the free side of said knife outwardly in engagement with the stop side.

In a device of the class described, a band ring provided With an enlarged por 10 tion with an inwardly enlarging circumfer- Gopies of this patent may he obtained for five cents each, by addressing the Commissioner of Patents Washington, D. C. 

